Housing for activity monitor



FIG. 1 is a front, and bottom perspective view of my design for a housing for activity monitor;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom view thereof.

The portions of the housing for activity monitor shown in dotted lines do not constitute a part of the claimed design. 

The ornamental design for a housing for activity monitor, as shown and described. 